Hi!
got a like new Double Dragon. pcb has no music but low volume sound. some kind of low frequency background noise is present. seems to be the music but distorted.
any hints ?
replace caps in the audio path ?
thanx
Problem: Double Dragon pcb no music
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hd
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system11
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Re: Problem: Double Dragon pcb no music
If the sound effects work, it's very likely an op-amp has failed, or maybe the DAC. If the sound effects are similarly affected it could be the main amp caps or the amp itself. Really needs someone with an oscilloscope to diagnose properly.
I can't remember if this one needs -5v, I'm assuming your cab has that though.
I can't remember if this one needs -5v, I'm assuming your cab has that though.
System11's random blog, with things - and stuff!
http://blog.system11.org
http://blog.system11.org
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hd
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Re: Problem: Double Dragon pcb no music
hehe i guess it is just missing -5V
Thanx for the hint
Thanx for the hint
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cools
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Re: Problem: Double Dragon pcb no music
It doesbloodflowers wrote:I can't remember if this one needs -5v
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slap_fight
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Re: Problem: Double Dragon pcb no music
if no -5 then no sound at all.